2003 Acura 3.2TL BaseFACTORY OEM SERVICE PROCEDURE

Oil Pump: Inspection

  1. Check the inner-to-outer rotor radial clearance between the inner rotor (A) and outer rotor (B). See Fig 1 and INNER ROTOR-TO-OUTER ROTOR RADIAL CLEARANCE  table. If the inner-to-outer rotor clearance exceeds the service limit, replace the oil pump assembly.
    INNER ROTOR-TO-OUTER ROTOR RADIAL CLEARANCE

    Application Specification - In. (mm)
    Standard (New) .002-.006 (.04-.16)
    Service Limit .008 (.20)
  2. Check the housing-to-rotor axial clearance between the rotors (A) and pump housing (B). See Fig 2 and HOUSING-TO-ROTOR AXIAL CLEARANCE  table. If the housing-to-rotor axial clearance exceeds the service limit, replace the oil pump assembly.
    HOUSING-TO-ROTOR AXIAL CLEARANCE

    Application Specification - In. (mm)
    Standard (New) .001-.003 (.02-.07)
    Service Limit .005 (.12)
  3. Check the housing-to-outer rotor radial clearance between the out rotor (A) and pump housing (B). See Fig 1 and HOUSING-TO-OUTER ROTOR RADIAL CLEARANCE  table. If the housing-to-outer rotor radial clearance exceeds the service limit, replace the oil pump assembly.
    HOUSING-TO-OUTER ROTOR RADIAL CLEARANCE

    Application Specification - In. (mm)
    Standard (New) .006-.007 (.14-.19)
    Service Limit .008 (.20)
  4. Inspect both rotors and the pump housing for scoring or other damage. Replace parts if necessary.
  5. Remove the old oil seals from the oil pump.
  6. Gently tap in the new oil seals until oil seal driver bottoms on the pump. See Fig 3.
  7. Apply liquid thread lock to the pump housing screws.
Fig 1: Checking Inner-To-Outer Rotor Radial Clearance
G00298139Courtesy of AMERICAN HONDA MOTOR CO., INC.
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  • • You are missing required tools, torque specs, or safe lifting equipment.
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